With Jordan Pickford and Davy Klaassen arriving at Goodison Park and Sandro soon to follow, Everton are wasting no time in the transfer market, making waves early on.
Having already added to his goalkeeper, midfield and striker spots, many are expecting to see Ronald Koeman add a centre-back to his ranks.
The Toffees look set to start the season with Ramiro Funes-Mori and Ashley Williams as options, but with Mason Holgate filling in for the injured Seamus Coleman at right-back and Phil Jagielka linked with a move back to Sheffield United, the Dutchman will need to bolster his ranks.
Keane, who also used to play for Manchester United, is thought to be the top target as Koeman looks to make a push for the top six.
But should Everton not be willing to meet his alleged £30m price tag, or want to add another player to their ranks, they may well be wise to look at another Red Devil.
Daley Blind was in and out the United first team last year but has consistently shown he has what it takes to produce for a top six side.
The Dutchman made just 23 league appearances in the league campaign and may well be looking for consistent first-team football this summer.
The move makes sense for Everton in a lot of ways, the first being the chance for Blind to link up with a fellow Dutchman in Koeman.
The Toffees boss has shown he can get the best out of his players and had good relationships with Dutch players like Virgil Van Dijk, Maarten Stekelenburg and Jordy Clasie.
He also had success bringing in Dusan Tadic and Graziano Pelle from the Eredivisie, so having a player who originally played in Holland would probably suit the makeup of the manager’s side.
Perhaps Blind’s greatest perk is his versatility.
In his time at Old Trafford he has played as a full-back, wing-back, centre-half and in the middle of midfield and performed admirably in each role.
These are all places the Dutchman could do a job for Everton as Jagielka and Leighton Baines have struggled with injury while Gareth Barry’s games will surely be limited at the age of 36.
Finally, another quality Blind has which is often overlooked is his ability to deliver set pieces.
Often down the pecking order for free-kicks and corners, the Dutchman has a cultured left foot. Just ask Leicester, who conceded from two Blind set-pieces in the first 45 minutes last September.
Of course, all of these characteristic may well be the reasons Mourinho is unwilling to sell – particularly with experience of European and international football at the top level harder to come by these days.
But if United can be persuaded to depart with their utility man, he should shoot right to the top of Koeman’s shopping list.